Preheat oven to 425*F
Remove chicken from packaging, remove giblets and rinse chicken with cold water.
Pat dry with paper towels, be sure to get the entire chicken as dry as possible.
Generously season with salt and pepper (This step can be done as early as 24 hours ahead and chilled until ready to be roasted)
Place carrots, garlic, onion, and lemons in a large cast-iron pan, drizzlewith olive oil, season with a pinch of salt and pepper, and toss to coat
Nestle the chicken on top of the lemons, garlic, and vegetables.
Stir together melted butter and Tandoori Masala, brush over chicken, making sure to cover all of the exposed skin.
Roast for 45-60 minutes or until internal temperature reaches 160*F
Rest for 20 minutes before serving.